NYC 9/11 Public Portal Document
Unit 4D Results
9094-M-4D-027 Microvac 37593.4 S/cm2 Chrysotile
9094-M-4D-028 Microvac 45507.8 S/cm2 Chrysotile
9094-M-4D-029 Microvac 25721.8 S/cm2 Chrysotile
9094-W-4D-019 Wipe 2374.32 S/cm2 Chrysotile
9094-W-4D-020 Wipe < 2366.41 S/cm2 Chrysotile
9094-W-4D-021 Wipe 26117.5 S/cm2 Chrysotile
9094-W-4D-022 Wipe 43529.2 S/cm2 Chrysotile
9094-W-4D-023 Wipe 18994.6 S/cm2 Chrysotile
Dioxin TEQ EMPC (ND=1/2)
Before cleaning
Sample ID Matrix Detected Result Comment
9094-W-4D-002 Wipe 0.878 ng/m2
9094-W-4D-003 Wipe 2.51 ng/m2
9094-W-4D-004 Wipe 0.728 ng/m2
9094-W-4D-005 Wipe 0.692 ng/m2
Post 1st cleaning - Test 2A
Sample ID Matrix Detected Result Comment
9094-W-4D-020 Wipe 0.571 ng/m2
9094-W-4D-021 Wipe 0.694 ng/m2
9094-W-4D-022 Wipe 0.522 ng/tn2
9094-W-4D-023 Wipe 0.557 ng/m2
Gypsum
Post 1st cleaning - Test 2A
Sample ID Matrix Detected Result Comment
9094-A-4D-017 Air ND < 0.016 mg/m3
9094-A-4D-018 Air ND < 0.016 mg/m3
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NYC-WTC_000145278
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